Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants; German version EN 12255-15:2003— 19 стр.
Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants; German version EN 12566-3:2005— 48 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 4: Specific principles for shutoff devices as penstocks, sluice gates, stoplogs etc.— 11 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 8: Specific principles for the equipment for sewage treatment in granular media filter and granular fixed bed filter— 14 стр.
Wastewater treatment plants - Principles for the design of structures and technical equipment - Part 10: Specific principles for the equipment for thermal sludge drying— 16 стр.
